Puncture-proof tire.



' PUNCTURE-PROO TIRE. fi

To all it may co'riccmf' Be it knownv that I, THoiims MEYNON, a

-citizen ofthe United States, residin in the vcity and-county of Philadelpliia-,- tate of yPennsylvania,have invented a new and use-1 ful Puncture-Proof Tire, of which the following is 'aspeeicatiom My invention relatesto a new and `useful punct-urefprooftire provided with a hollow thiinble exending through the rim 2ofthe 'wheel and with anut engaging with the tire Aand within the saine and also engaging with the thi'in'ble for holding the latterand thetire in place, and a series of shoes arranged. 15

along the inner `peripliery'i'f .fthe tireand forced outwai-dlv by tension devicesseated within the thiinble.

'My invent-ion relates'to anovel:const.rue-,iI tion of a thimble which is adapted to bein#` sei-ted through' the inner p ortion of the-rim and to be engaged ened walls of the tire, said thiinble receiving a ,tension device which is retainedin position within it. and within an extension projecting.y

shoes e m,Av vibration and sklddingare from th-inner wall of each ofthe ployed, whereby 'considerably minimized and ampleresilience is obtained without. any liability of, danger occurring from punctures.

It, further consists of other novel .foal

as will be liereiiithe tread relatively to the base of the -tii'e or tures of construction, all after fully set forth.

For the purpose ot illustrating niyinvent-ion, l have shown' in the :ccoinpanying drawings one foi-ni thereof which is at present preferred, by ine, since'thc saine has been found. in practice to give satisfactoiy and reliable results, although it is to be understood that the various instrui'nentalities of. which iny invention consists can be `variously' arranged and organized and that my invention-is not limited to the ment and organization of these instruinen talities as herein shown and described.

Figure 1 represents a longitudinal section through l:1..wheel provided with my invention. Fig-2 'represents a cross section upon liig". 3 represents a Fig'. 2 of a modified line :tf-aref Fig. l1. cross section sinula'r to forni'. Fig. t represents a perspective "iew V of the initI an`d flangctlierenii. .Y

ice indicate Similar numerals .offrefffer corresponding parts 1n the ligii i Referring to the drawings, 1"d

9 of the rin 2 and the faces. 10 and 11 by an adjustable'nut spending to substantially-the vwidth of the which engages the inner portion o rqthick;Y

.nient with the -will forni precise arrange- Isig`r-mte$gl spokes of any .usual or recognized type sus-t taining therim upon which the outer tire Cfrshoe 3, of .rubber or other vresilient -inatie-A rial, 1s placed. This outer tire consist-s of a preferably thickened tread 4 and base portions@ and 6 forming thickened lateral 4terminations of ,tliet-ii'e, and eonnecting'webs orside portions 7 and 8. The Abase portions 5 and 6 areadapted to lie within the groove to be held therein by means hereinafter specified.

' The distance separating the juntaposedsurfaces 10 and? 11 ofthe tire base may be ,substantially as show-ii iii-the; drawing, cori responding to that of. the particular spring supporting and engaging devices desired'vto tie 'used orit `maybe less tlian'tliis distance, Suitable Provisiony ,may be inadeafor accommodating thetire sep` in which latter case forms illus't rz ited,'1havepreferred to spacev by a dist-ance corret-ubular nut hereinafter described. ,Y I support-the tread of 'the tireby nica-.iis

of the shoes'12 whose ,outer surfaces are preferably coated with a covering of rubber orany suitable inateriall rigidly attached to theshoe to provide advantageous engage innersurfaees of the tread of the tire, The outer surface-of the ninterial 1 3 may thus be made to perform a grip#l ping function to protect against` creeping et' where this is not desirable it 4may he inade of such characteras to'ot'ei' aslittlc friction and wear with andnpon the inner surfaces of thetreadas possible; in either cri-nt, it amore advantageous means of engagemenbwith the,inner surfaces of the tread than -the 'sh'oes l2:

which byv rea-son, of

the duty otherwise requiredof vthein are y preferably' ofinet-a1 l Upon the inner side of each of the shoesL 12J have provided a ri gid extension 1 twliich Sertion of the 1s inadc tubular or hollow to .permit the iri spring- 15 within -1 the saine.

This tn bular extension' Mds adapted to slide.,

in to and be guided hy thiinb-le'lG upon the liottoinV17 of which the .end ofthe spriiigl.isintended to i'est. In order to sccui'etheproper or desi1ed;ad ju'st nient of the tensio offthe. spriiig-d5nvitli- 'out necessitating the alteringof-.tli 'i diineiv vsions thereof, .I have. illustrated, the;

the inner bore 'of the .iin

Vivashersmay be of any suitable or desired size or'nnmber andivill evidently compress the spring ii'iivardlv to any desired cxtent.

The thinible 16 is. inserted from the inside of the wheel through an aperture 19 -iii the rim t'o an extent which is llimited by the shoulder 20, which I have shown as of hexagonal or similar i rtei'ior contour at'21, in'

order that a. wrench may be readily lapplied thereto when the parts are assembled. e

lThe tubular socket or tliiinble 1,6 is exs' vternally threaded at 22 to engage with a hollow nut 23 having' an outwardly and dou-'nwardly extended flange `21`prefcrably- Arectangular in top .plan View with the thread-- cd opening shown in the center thereof and is guttered in the bottom plan view with fthe lcylindrically threaded boss or extensionv projecting downwardlyfrom thel v center thereof, asbest seen in Fig. 4. It will be evidentthat the tire is springdistended 'by means of each of the Shoes 12 -tightcned at any time from the inside of the and the springs 15, which are in turn guided andI stili'eiicd against creeping and lateral movement by the tubular guide 1 4, and that furthermore this tiibiilar guide and nut 23 oli'er means for supporting this structure and 'at the saine time retaining the base of the tire rigidly in place 'which means can be Wheel without removal' of the tire.

In the struct-ure shown in Fig. 3, I have employed theA same main tire, shoe, guide Aand nut as in the structure shown in Fig. 2 but I have employed a solid rubber spring, buffer or cushion 25 instead of the spiral spring 15 and emplo'yja somewhat shorter socket or thim'ble whose outer portion terininates on a line with the hexagonal head 26. This shortening of the tubular socket is of course equally applicable', to the form shown in Figs. 1 and 2 when a shorter spiral y spring ,would be employed which can' be readily .compressed within the space thus provided. In Fig. 3 .I ha've also shown the space, occupied by the solid or other rubber j Itwill'be apparent in both embodiments spring, as further reduced by means of disks 'The operationof the. structure shown in Fig. 3 is ident-ical with that shown in Fig;'2 except that the spiral spring is substituted in Fig. 2 by the solid rubber-spring 25, seen in Fig. L

of .my invention that when the shoes 12 are .made of the proper materials and the thimbles 16' (whic i I preferably employ ingroups of two between cach pair of spokes)l are properly adjusted with respect to the nuts' 23 and the tension devices, so that apuncf ture) proof tire is produced which' has fall the resiliency andthe cushioning qualities` In some instances it maybe desirable to employ7 the solid cushion 25 of'rubber or other resilient material 'in lieu'of the cc" spring'lt seen in Figs. 1 and 2.

It will be evident that my invent-i011 gives free access for adjustment of the clamping parts and permits free removal of the tire as desired, either partially or totally at the` saine time that it secures the 'parts against leakage of dust .and dirt into or between the tires and insures 'cleanliness of the interior parts. Repairsl are also greatly facilitated in that springs can bereinovedand changedreadily and quickly and entire spring units including sprin 's' with cylindrical casing therefor can real ily be inserted.

It will be apparent that changes may be y made by those skilled in the artin the inanner of assembling the shoes, thiinbles, nuts, cushioning devices and their adjuncts ivithout departing `from'tlie spirit of my i'n-ven-. tion and I do not therefore desire to be limited in every instance to the exact features,

of construction herein shown aiid'desc'ribed.l Having thus described my invention, what claim as new and desirefto secure by Let-'- ters Patent, is zl 1. In a device-of the character stated, a

rim, a hollow thimble extending through said rim, a tire, a nut Within said tire, engaging with said thimble. and bearing upon the inner portion of the tire forholding said thimble and tire in lace, a shoe, a guide upon said shoe, an tension devices removable through the rim and located within said thiinble for pressinglsaid shoe outwardly from said thimble against said tire.

v In a. device of the character stated, 'a rim, a thimble extending' through saidl rim and having a 4shoulderthereon, a tire', a

ico

nut Within said tire engaging with said'- tliimble and bearing upon the inner portion v of the tire for holding saidthimble 1n place and ,spring tire-distending means for sai tire located Within said thiiiible.-

3. -In a device of the character stated, a

resilient tire havingl an outer thickened tread and thickened annular base portions, a'

curvedy rim 'within which'said base portions are seated, a thiinble extendin through said r1m and having ai polygone shoulder engaging said riina -threaded nut engaging said thimble and the contiguous portion ofsaid tire, .a shoe engagingthe inner portion of said tire and providedv with anexten-v sion.` projecting into said thimblepandy a.

cushioning devicepressing against 'said shoe and againstsaid thimble.

4. In a device of the `character stated, a; i

resilient tirehaving an outer thickened and thimble to said rim and having engaglng s aldrlm, a threaded nut engaging tread -and thickened annular base portions, a curved rim Within which said base portions are seated, a thimble extending through a. polygonal. shoulder said thirnble and the contiguous portionof said tire, a shoe engaging the inner. portion of said tire 'and provided with an extension projecting into said thimble, a cushioning device, located' intermediately of said shoe press the shoe outwardly, and a covering located intermediately of the outer surface of saidshoe and the inner juxtaposed portion of -said tire to prevent slipping or friction of the parts.

5. In a device of the character stated, a rim, an interiorly opening tire mounted thereon, a nut, flanges upon opposite sides of said nut for engagement with the adjacent edges of thetire, a hollow bolt passing throughsaid rim to engage with the nut and resilient means seatedwithin said bolt for pressing t-he tire outwardly.-

G. In a-devi'ce of the character stated, a riin, a hollow tire seated on the same, a n-ut engaging and retaining said tire,'a hollow screw-bolt passed through the rim and engaging said nut, and -resilient means'within said boltand extending outwardly to support the'tire.

7. In adevicc 4ot the character stated, a rim, a tire mounted thereon, a'nut retaining the tire in position. a hollow bolt passing through thc rim to engage with the nut, a shoe, a guide for said said liolt'aud resilient means for sustaining the guide and shoe.

shoe passing within shoe passing within said bolt, and resilient means within said guide for pressingthe shoe outwardly. 'Y

9. In a device of the bcharacter stated, av

rim, a tire thereon, a shoe engageable with said tire interiorly, a nut engageable with the tire to retain it in position, a tubular bolt engageable With'said nut, a hollow guide for said shoe passing within the bolt,

and spring means for forcing the shoe outwardly located withinthe bolt. and guide.

l0. Ina device of the character stated, a rim, a thimble extending through said rim, projecting and accessible for detachment from the hub side, a nut secured'upon'said thimble, a tire having' annular thickened base members engaged by said nut, a shoe within the tire, and tensional devices guided by the thimble and pressing the shoe againstl the interior of the tire. ..7

11. In a device'of the character stated, a rim, a hollow Athimhle extendingI through 'said rim, a nut engaging ,the outer portion of said thimble, a tire having'terminal base members retained by said nut, a shoe wit-,hin the tire, a

guide upon said lshoe extendingA 8. In a device of t-he character stated,- a.'-

within said thimble and tension devices in`` tei-mediate of said thimble and shoe.

THOMAS M. EYNON.' llritnesses W. JAcusoN, C. D. MCVAY. 

